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Finding the Fourth Proportional to 3,135.04, 4,702.04 and 1,379.64

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Solution

The fourth proportional to 3,135.04, 4,702.04 and 1,379.64 is: 2,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.04 : 4,702.04 = 1,379.64 : x
  2. Step 2: Convert to fraction form
    3,135.04/4,702.04 = 1,379.64/x
  3. Step 3: Cross multiply
    3,135.04x = 4,702.04 × 1,379.64
  4. Step 4: Simplify right side
    3,135.04x = 6,487,122.47
  5. Step 5: Solve for x
    x = 6,487,122.47/3,135.04
  6. Step 6: Final answer
    x = 2,069.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.